data := [[8, 20.68556334], [7.315632251, 17.41460506], [9.674834369, 16.460395\
24], [7.692565044, 17.12085098], [-7.934254902, 20.47728245], [9.831972177, 15\
.27105210], [.2085936513, 19.34189914], [2.679516228, 17.39200439], [-3.132360\
895, 19.03373844], [-.2930096030, 19.09133844], [-1.317852745, 19.97146990], [
4.294518964, 17.54757957], [-.372762128e-1, 18.63038933], [-2.977302205, 20.62\
585055], [-.5704959026, 19.44379990], [-9.463842602, 22.84230367], [-2.4937034\
23, 19.84688927], [-6.851551613, 21.74310212], [-9.641554731, 21.36261886], [3\
.359430918, 18.87860008], [8.413151950, 16.26005282], [-1.291247469, 18.737083\
88], [8.788767063, 16.74281299], [-2.910923877, 20.31585076], [-9.911795677, 
22.04992916], [-4.722243743, 20.45825684]];